Limiting and looseness-preventing type overload protective clamp

Abstract

The invention discloses a limiting and looseness-preventing type overload protective clamp, and belongs to the field of clamps. The limiting and looseness-preventing type overload protective clamp comprises a clamp base, a left fixing block, a left threaded rod, a left clamping block, a right clamping block, a right threaded rod and a right fixing block, wherein a dovetail groove is formed in the clamp base, and the left fixing block and the right fixing block are arranged at the two ends of the dovetail groove respectively. The limiting and looseness-preventing type overload protective clamp further comprises a safety clutch mechanism, a fixed base, an adjusting rod, an outer ring, screws, springs, steel balls, a square handle and limiting and looseness-preventing devices, wherein the limiting and looseness-preventing devices are arranged on the adjusting rod and the left threaded rod respectively, the adjusting rod is assembled in a threaded hole of the fixed base, the square handle is connected with the adjusting rod, the screws are assembled in threaded holes of the outer ring, the steel balls are pressed on the surface of the square handle, and each spring is arranged between the corresponding screw and the corresponding steel ball. The limiting and looseness-preventing type overload protective clamp solves the problems that according to an existing clamp, clamping force cannot be easily controlled, and looseness can be easily caused, and has the advantages of being simple in structure, reasonable in design and easy to manufacture.

Description

technical field [0001] The invention belongs to the field of clamps, and more specifically relates to a limiting and anti-loosening overload protection clamp for preventing excessive clamping of workpieces. Background technique [0002] In the machinery manufacturing industry, machine tools are used to process various workpieces, and clamping tools are required to fix the workpieces during processing, so as to realize cutting processes such as outer circle, end face, thread and axial cutting. At present, when the existing fixture is working, in the process of frequent clamping and loosening, the tightness of the clamping of the workpiece is usually judged by hand acting on the workpiece, which consumes a lot of time, increases labor intensity, and reduces work efficiency. At the same time, because the clamping force is not easy to control, if it is too loose, the positioning effect will not be achieved, and if it is too tight, it will damage the surface of the workpiece, or ...

AI Technical Summary

Problems solved by technology

[0003] Aiming at the problems that the clamping force is difficult to control and easy to loose caused by the existing clamps, the present invention provides a limiting and anti-loosening overload protection clamp

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